import java.util.HashMap;
import java.util.Map;

public class helloworldGTLZEROSIXFOURTWO {
    public static void main(String[] args)
    {
        int [] arr={1,2,3,2,4,5,7,10,1,5,3,5,8,9,4,5,2,3};
        Map<Integer,String> map =new HashMap<Integer,String>();
        for (int i = 0; i < 18; i++) {
            map.put(arr[i],"");
        }
        for (Integer o : map.keySet())
        {
            System.out.println("key值"+ o );
            // 测试合并
        }
    }

}
